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c906108c 1/* Support for printing C and C++ types for GDB, the GNU debugger.
4a94e368 2 Copyright (C) 1986-2022 Free Software Foundation, Inc.
c906108c 3
c5aa993b 4 This file is part of GDB.
c906108c 5
c5aa993b
JM
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
a9762ec7 8 the Free Software Foundation; either version 3 of the License, or
c5aa993b 9 (at your option) any later version.
c906108c 10
c5aa993b
JM
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
c906108c 15
c5aa993b 16 You should have received a copy of the GNU General Public License
a9762ec7 17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
c906108c
SS
18
19#include "defs.h"
bf31fd38 20#include "gdbsupport/gdb_obstack.h"
4de283e4 21#include "bfd.h" /* Binary File Description. */
d55e5aa6 22#include "symtab.h"
4de283e4
TT
23#include "gdbtypes.h"
24#include "expression.h"
25#include "value.h"
26#include "gdbcore.h"
d55e5aa6 27#include "target.h"
4de283e4
TT
28#include "language.h"
29#include "demangle.h"
30#include "c-lang.h"
31#include "cli/cli-style.h"
d55e5aa6 32#include "typeprint.h"
4de283e4
TT
33#include "cp-abi.h"
34#include "cp-support.h"
c906108c 35
c191a687
KS
36/* A list of access specifiers used for printing. */
37
38enum access_specifier
39{
40 s_none,
41 s_public,
42 s_private,
43 s_protected
44};
45
bc8453a7
TT
46static void c_type_print_varspec_suffix (struct type *, struct ui_file *, int,
47 int, int,
c1ec8cea 48 enum language,
bc8453a7
TT
49 const struct type_print_options *);
50
aff410f1
MS
51static void c_type_print_varspec_prefix (struct type *,
52 struct ui_file *,
79d43c61 53 int, int, int,
c1ec8cea 54 enum language,
7c161838
SDJ
55 const struct type_print_options *,
56 struct print_offset_data *);
c906108c 57
aff410f1
MS
58/* Print "const", "volatile", or address space modifiers. */
59static void c_type_print_modifier (struct type *,
60 struct ui_file *,
3293bbaf 61 int, int, enum language);
7c161838
SDJ
62
63static void c_type_print_base_1 (struct type *type, struct ui_file *stream,
c1ec8cea 64 int show, int level, enum language language,
7c161838
SDJ
65 const struct type_print_options *flags,
66 struct print_offset_data *podata);
c5aa993b 67\f
bd69fc68
TT
68
69/* A callback function for cp_canonicalize_string_full that uses
c819b2c0 70 typedef_hash_table::find_typedef. */
bd69fc68
TT
71
72static const char *
73find_typedef_for_canonicalize (struct type *t, void *data)
74{
c819b2c0
TT
75 return typedef_hash_table::find_typedef
76 ((const struct type_print_options *) data, t);
bd69fc68
TT
77}
78
79/* Print NAME on STREAM. If the 'raw' field of FLAGS is not set,
80 canonicalize NAME using the local typedefs first. */
81
82static void
83print_name_maybe_canonical (const char *name,
84 const struct type_print_options *flags,
85 struct ui_file *stream)
86{
596dc4ad 87 gdb::unique_xmalloc_ptr<char> s;
bd69fc68
TT
88
89 if (!flags->raw)
90 s = cp_canonicalize_string_full (name,
91 find_typedef_for_canonicalize,
92 (void *) flags);
93
596dc4ad 94 fputs_filtered (s != nullptr ? s.get () : name, stream);
bd69fc68
TT
95}
96
97\f
98
7c161838 99/* Helper function for c_print_type. */
c906108c 100
7c161838
SDJ
101static void
102c_print_type_1 (struct type *type,
103 const char *varstring,
104 struct ui_file *stream,
105 int show, int level,
c1ec8cea 106 enum language language,
7c161838
SDJ
107 const struct type_print_options *flags,
108 struct print_offset_data *podata)
c906108c 109{
52f0bd74 110 enum type_code code;
c906108c 111 int demangled_args;
9750e763 112 int need_post_space;
bd69fc68 113 const char *local_name;
c906108c
SS
114
115 if (show > 0)
f168693b 116 type = check_typedef (type);
c906108c 117
c819b2c0 118 local_name = typedef_hash_table::find_typedef (flags, type);
78134374 119 code = type->code ();
bd69fc68
TT
120 if (local_name != NULL)
121 {
999a4952 122 c_type_print_modifier (type, stream, 0, 1, language);
bd69fc68
TT
123 fputs_filtered (local_name, stream);
124 if (varstring != NULL && *varstring != '\0')
125 fputs_filtered (" ", stream);
126 }
127 else
128 {
c1ec8cea 129 c_type_print_base_1 (type, stream, show, level, language, flags, podata);
bd69fc68
TT
130 if ((varstring != NULL && *varstring != '\0')
131 /* Need a space if going to print stars or brackets;
132 but not if we will print just a type name. */
7d93a1e0 133 || ((show > 0 || type->name () == 0)
bd69fc68
TT
134 && (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC
135 || code == TYPE_CODE_METHOD
136 || (code == TYPE_CODE_ARRAY
bd63c870 137 && !type->is_vector ())
bd69fc68
TT
138 || code == TYPE_CODE_MEMBERPTR
139 || code == TYPE_CODE_METHODPTR
e1cb3213 140 || TYPE_IS_REFERENCE (type))))
bd69fc68
TT
141 fputs_filtered (" ", stream);
142 need_post_space = (varstring != NULL && strcmp (varstring, "") != 0);
143 c_type_print_varspec_prefix (type, stream, show, 0, need_post_space,
c1ec8cea 144 language, flags, podata);
bd69fc68 145 }
c906108c
SS
146
147 if (varstring != NULL)
148 {
ac8c53cc
PW
149 if (code == TYPE_CODE_FUNC || code == TYPE_CODE_METHOD)
150 fputs_styled (varstring, function_name_style.style (), stream);
151 else
3f0cbb04 152 fputs_styled (varstring, variable_name_style.style (), stream);
c906108c 153
aff410f1 154 /* For demangled function names, we have the arglist as part of
dda83cd7 155 the name, so don't print an additional pair of ()'s. */
bd69fc68
TT
156 if (local_name == NULL)
157 {
158 demangled_args = strchr (varstring, '(') != NULL;
159 c_type_print_varspec_suffix (type, stream, show,
160 0, demangled_args,
c1ec8cea 161 language, flags);
bd69fc68 162 }
c906108c
SS
163 }
164}
c5aa993b 165
7c161838
SDJ
166/* LEVEL is the depth to indent lines by. */
167
168void
169c_print_type (struct type *type,
170 const char *varstring,
171 struct ui_file *stream,
172 int show, int level,
173 const struct type_print_options *flags)
174{
fbb46296 175 struct print_offset_data podata (flags);
7c161838 176
c1ec8cea
TT
177 c_print_type_1 (type, varstring, stream, show, level,
178 current_language->la_language, flags, &podata);
179}
180
181
182/* See c-lang.h. */
183
184void
185c_print_type (struct type *type,
186 const char *varstring,
187 struct ui_file *stream,
188 int show, int level,
189 enum language language,
190 const struct type_print_options *flags)
191{
fbb46296 192 struct print_offset_data podata (flags);
c1ec8cea
TT
193
194 c_print_type_1 (type, varstring, stream, show, level, language, flags,
195 &podata);
7c161838
SDJ
196}
197
5c6ce71d
TT
198/* Print a typedef using C syntax. TYPE is the underlying type.
199 NEW_SYMBOL is the symbol naming the type. STREAM is the stream on
200 which to print. */
201
202void
aff410f1
MS
203c_print_typedef (struct type *type,
204 struct symbol *new_symbol,
5c6ce71d
TT
205 struct ui_file *stream)
206{
f168693b 207 type = check_typedef (type);
5c6ce71d 208 fprintf_filtered (stream, "typedef ");
a8e9d247 209 type_print (type, "", stream, -1);
5f9c5a63
SM
210 if ((new_symbol->type ())->name () == 0
211 || strcmp ((new_symbol->type ())->name (),
987012b8 212 new_symbol->linkage_name ()) != 0
5f9c5a63 213 || new_symbol->type ()->code () == TYPE_CODE_TYPEDEF)
987012b8 214 fprintf_filtered (stream, " %s", new_symbol->print_name ());
e1709896 215 fprintf_filtered (stream, ";");
5c6ce71d
TT
216}
217
c906108c 218/* If TYPE is a derived type, then print out derivation information.
aff410f1
MS
219 Print only the actual base classes of this type, not the base
220 classes of the base classes. I.e. for the derivation hierarchy:
c906108c 221
c5aa993b
JM
222 class A { int a; };
223 class B : public A {int b; };
224 class C : public B {int c; };
c906108c
SS
225
226 Print the type of class C as:
227
c5aa993b
JM
228 class C : public B {
229 int c;
230 }
c906108c 231
aff410f1
MS
232 Not as the following (like gdb used to), which is not legal C++
233 syntax for derived types and may be confused with the multiple
234 inheritance form:
c906108c 235
c5aa993b
JM
236 class C : public B : public A {
237 int c;
238 }
c906108c 239
aff410f1 240 In general, gdb should try to print the types as closely as
62a49610 241 possible to the form that they appear in the source code. */
c906108c
SS
242
243static void
aff410f1 244cp_type_print_derivation_info (struct ui_file *stream,
bd69fc68
TT
245 struct type *type,
246 const struct type_print_options *flags)
c906108c 247{
0d5cff50 248 const char *name;
c906108c
SS
249 int i;
250
251 for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
252 {
1285ce86 253 stream->wrap_here (8);
c906108c
SS
254 fputs_filtered (i == 0 ? ": " : ", ", stream);
255 fprintf_filtered (stream, "%s%s ",
aff410f1
MS
256 BASETYPE_VIA_PUBLIC (type, i)
257 ? "public" : (TYPE_FIELD_PROTECTED (type, i)
258 ? "protected" : "private"),
c5aa993b 259 BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
7d93a1e0 260 name = TYPE_BASECLASS (type, i)->name ();
bd69fc68
TT
261 if (name)
262 print_name_maybe_canonical (name, flags, stream);
263 else
264 fprintf_filtered (stream, "(null)");
c906108c
SS
265 }
266 if (i > 0)
267 {
268 fputs_filtered (" ", stream);
269 }
270}
ad2f7632 271
c906108c 272/* Print the C++ method arguments ARGS to the file STREAM. */
c5aa993b 273
392a587b 274static void
0d5cff50
DE
275cp_type_print_method_args (struct type *mtype, const char *prefix,
276 const char *varstring, int staticp,
6c8702eb 277 struct ui_file *stream,
c1ec8cea 278 enum language language,
6c8702eb 279 const struct type_print_options *flags)
c906108c 280{
80fc5e77 281 struct field *args = mtype->fields ();
1f704f76 282 int nargs = mtype->num_fields ();
a409645d 283 int varargs = mtype->has_varargs ();
c906108c 284 int i;
c5aa993b 285
aff410f1
MS
286 fprintf_symbol_filtered (stream, prefix,
287 language_cplus, DMGL_ANSI);
288 fprintf_symbol_filtered (stream, varstring,
289 language_cplus, DMGL_ANSI);
c906108c 290 fputs_filtered ("(", stream);
ad2f7632 291
5f4d1085
KS
292 /* Skip the class variable. We keep this here to accommodate older
293 compilers and debug formats which may not support artificial
294 parameters. */
ad2f7632
DJ
295 i = staticp ? 0 : 1;
296 if (nargs > i)
c906108c 297 {
ad2f7632 298 while (i < nargs)
c5aa993b 299 {
5f4d1085
KS
300 struct field arg = args[i++];
301
302 /* Skip any artificial arguments. */
303 if (FIELD_ARTIFICIAL (arg))
304 continue;
305
5d14b6e5 306 c_print_type (arg.type (), "", stream, 0, 0, flags);
ad2f7632
DJ
307
308 if (i == nargs && varargs)
309 fprintf_filtered (stream, ", ...");
310 else if (i < nargs)
bd69fc68
TT
311 {
312 fprintf_filtered (stream, ", ");
1285ce86 313 stream->wrap_here (8);
bd69fc68 314 }
c5aa993b 315 }
c906108c 316 }
ad2f7632
DJ
317 else if (varargs)
318 fprintf_filtered (stream, "...");
c1ec8cea 319 else if (language == language_cplus)
ad2f7632 320 fprintf_filtered (stream, "void");
c5aa993b 321
c906108c 322 fprintf_filtered (stream, ")");
94af9270
KS
323
324 /* For non-static methods, read qualifiers from the type of
325 THIS. */
326 if (!staticp)
327 {
328 struct type *domain;
329
330 gdb_assert (nargs > 0);
5d14b6e5
SM
331 gdb_assert (args[0].type ()->code () == TYPE_CODE_PTR);
332 domain = TYPE_TARGET_TYPE (args[0].type ());
94af9270
KS
333
334 if (TYPE_CONST (domain))
335 fprintf_filtered (stream, " const");
336
337 if (TYPE_VOLATILE (domain))
338 fprintf_filtered (stream, " volatile");
06d66ee9
TT
339
340 if (TYPE_RESTRICT (domain))
3293bbaf
TT
341 fprintf_filtered (stream, (language == language_cplus
342 ? " __restrict__"
343 : " restrict"));
a2c2acaf
MW
344
345 if (TYPE_ATOMIC (domain))
346 fprintf_filtered (stream, " _Atomic");
94af9270 347 }
c906108c
SS
348}
349
350
351/* Print any asterisks or open-parentheses needed before the
352 variable name (to describe its type).
353
354 On outermost call, pass 0 for PASSED_A_PTR.
355 On outermost call, SHOW > 0 means should ignore
356 any typename for TYPE and show its details.
9750e763
KB
357 SHOW is always zero on recursive calls.
358
359 NEED_POST_SPACE is non-zero when a space will be be needed
360 between a trailing qualifier and a field, variable, or function
361 name. */
c906108c 362
a737a51b 363static void
aff410f1
MS
364c_type_print_varspec_prefix (struct type *type,
365 struct ui_file *stream,
366 int show, int passed_a_ptr,
79d43c61 367 int need_post_space,
c1ec8cea 368 enum language language,
7c161838
SDJ
369 const struct type_print_options *flags,
370 struct print_offset_data *podata)
c906108c 371{
0d5cff50 372 const char *name;
c5504eaf 373
c906108c
SS
374 if (type == 0)
375 return;
376
7d93a1e0 377 if (type->name () && show <= 0)
c906108c
SS
378 return;
379
380 QUIT;
381
78134374 382 switch (type->code ())
c906108c
SS
383 {
384 case TYPE_CODE_PTR:
aff410f1 385 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
c1ec8cea
TT
386 stream, show, 1, 1, language, flags,
387 podata);
c906108c 388 fprintf_filtered (stream, "*");
3293bbaf 389 c_type_print_modifier (type, stream, 1, need_post_space, language);
c906108c
SS
390 break;
391
0d5de010 392 case TYPE_CODE_MEMBERPTR:
aff410f1 393 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
a737d952 394 stream, show, 0, 0, language, flags, podata);
7d93a1e0 395 name = TYPE_SELF_TYPE (type)->name ();
c906108c 396 if (name)
bd69fc68 397 print_name_maybe_canonical (name, flags, stream);
c906108c 398 else
7c161838 399 c_type_print_base_1 (TYPE_SELF_TYPE (type),
c1ec8cea
TT
400 stream, -1, passed_a_ptr, language, flags,
401 podata);
0d5de010 402 fprintf_filtered (stream, "::*");
c906108c
SS
403 break;
404
0d5de010 405 case TYPE_CODE_METHODPTR:
aff410f1 406 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
c1ec8cea
TT
407 stream, show, 0, 0, language, flags,
408 podata);
0d5de010 409 fprintf_filtered (stream, "(");
7d93a1e0 410 name = TYPE_SELF_TYPE (type)->name ();
0d5de010 411 if (name)
bd69fc68 412 print_name_maybe_canonical (name, flags, stream);
0d5de010 413 else
7c161838 414 c_type_print_base_1 (TYPE_SELF_TYPE (type),
c1ec8cea
TT
415 stream, -1, passed_a_ptr, language, flags,
416 podata);
0d5de010 417 fprintf_filtered (stream, "::*");
c906108c
SS
418 break;
419
420 case TYPE_CODE_REF:
e1cb3213 421 case TYPE_CODE_RVALUE_REF:
aff410f1 422 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
c1ec8cea
TT
423 stream, show, 1, 0, language, flags,
424 podata);
78134374 425 fprintf_filtered (stream, type->code () == TYPE_CODE_REF ? "&" : "&&");
3293bbaf 426 c_type_print_modifier (type, stream, 1, need_post_space, language);
c906108c
SS
427 break;
428
0d5de010 429 case TYPE_CODE_METHOD:
c906108c 430 case TYPE_CODE_FUNC:
aff410f1 431 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
c1ec8cea
TT
432 stream, show, 0, 0, language, flags,
433 podata);
c906108c
SS
434 if (passed_a_ptr)
435 fprintf_filtered (stream, "(");
436 break;
437
438 case TYPE_CODE_ARRAY:
aff410f1 439 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
77791f9c
AB
440 stream, show, 0, need_post_space,
441 language, flags, podata);
c906108c
SS
442 if (passed_a_ptr)
443 fprintf_filtered (stream, "(");
444 break;
445
248f8055 446 case TYPE_CODE_TYPEDEF:
aff410f1 447 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
c1ec8cea
TT
448 stream, show, passed_a_ptr, 0,
449 language, flags, podata);
248f8055
DJ
450 break;
451
c906108c
SS
452 case TYPE_CODE_UNDEF:
453 case TYPE_CODE_STRUCT:
454 case TYPE_CODE_UNION:
455 case TYPE_CODE_ENUM:
81516450 456 case TYPE_CODE_FLAGS:
c906108c
SS
457 case TYPE_CODE_INT:
458 case TYPE_CODE_FLT:
459 case TYPE_CODE_VOID:
460 case TYPE_CODE_ERROR:
461 case TYPE_CODE_CHAR:
462 case TYPE_CODE_BOOL:
463 case TYPE_CODE_SET:
464 case TYPE_CODE_RANGE:
465 case TYPE_CODE_STRING:
c906108c 466 case TYPE_CODE_COMPLEX:
5c4e30ca 467 case TYPE_CODE_NAMESPACE:
7678ef8f 468 case TYPE_CODE_DECFLOAT:
0c9150e4 469 case TYPE_CODE_FIXED_POINT:
c906108c 470 /* These types need no prefix. They are listed here so that
dda83cd7 471 gcc -Wall will reveal any types that haven't been handled. */
c906108c 472 break;
c4093a6a 473 default:
3d263c1d 474 error (_("type not handled in c_type_print_varspec_prefix()"));
c4093a6a 475 break;
c906108c
SS
476 }
477}
478
64b00020
DE
479/* Print out "const" and "volatile" attributes,
480 and address space id if present.
c906108c
SS
481 TYPE is a pointer to the type being printed out.
482 STREAM is the output destination.
a737a51b
DE
483 NEED_PRE_SPACE = 1 indicates an initial white space is needed.
484 NEED_POST_SPACE = 1 indicates a final white space is needed. */
c906108c
SS
485
486static void
47663de5 487c_type_print_modifier (struct type *type, struct ui_file *stream,
3293bbaf
TT
488 int need_pre_space, int need_post_space,
489 enum language language)
c906108c 490{
47663de5 491 int did_print_modifier = 0;
321432c0 492 const char *address_space_id;
c5aa993b 493
7f0b5c30
JB
494 /* We don't print `const' qualifiers for references --- since all
495 operators affect the thing referenced, not the reference itself,
496 every reference is `const'. */
e1cb3213 497 if (TYPE_CONST (type) && !TYPE_IS_REFERENCE (type))
c906108c
SS
498 {
499 if (need_pre_space)
c5aa993b 500 fprintf_filtered (stream, " ");
c906108c 501 fprintf_filtered (stream, "const");
47663de5 502 did_print_modifier = 1;
c906108c 503 }
c5aa993b 504
c906108c
SS
505 if (TYPE_VOLATILE (type))
506 {
47663de5 507 if (did_print_modifier || need_pre_space)
c5aa993b 508 fprintf_filtered (stream, " ");
c906108c 509 fprintf_filtered (stream, "volatile");
47663de5 510 did_print_modifier = 1;
c906108c
SS
511 }
512
06d66ee9
TT
513 if (TYPE_RESTRICT (type))
514 {
515 if (did_print_modifier || need_pre_space)
516 fprintf_filtered (stream, " ");
3293bbaf
TT
517 fprintf_filtered (stream, (language == language_cplus
518 ? "__restrict__"
519 : "restrict"));
06d66ee9
TT
520 did_print_modifier = 1;
521 }
522
a2c2acaf
MW
523 if (TYPE_ATOMIC (type))
524 {
525 if (did_print_modifier || need_pre_space)
526 fprintf_filtered (stream, " ");
527 fprintf_filtered (stream, "_Atomic");
528 did_print_modifier = 1;
529 }
530
69896a2c 531 address_space_id
8ee511af 532 = address_space_type_instance_flags_to_name (type->arch (),
10242f36 533 type->instance_flags ());
47663de5
MS
534 if (address_space_id)
535 {
536 if (did_print_modifier || need_pre_space)
537 fprintf_filtered (stream, " ");
538 fprintf_filtered (stream, "@%s", address_space_id);
539 did_print_modifier = 1;
540 }
541
542 if (did_print_modifier && need_post_space)
c906108c
SS
543 fprintf_filtered (stream, " ");
544}
545
546
0d5de010
DJ
547/* Print out the arguments of TYPE, which should have TYPE_CODE_METHOD
548 or TYPE_CODE_FUNC, to STREAM. Artificial arguments, such as "this"
3167638f
JK
549 in non-static methods, are displayed if LINKAGE_NAME is zero. If
550 LINKAGE_NAME is non-zero and LANGUAGE is language_cplus the topmost
551 parameter types get removed their possible const and volatile qualifiers to
552 match demangled linkage name parameters part of such function type.
553 LANGUAGE is the language in which TYPE was defined. This is a necessary
9c37b5ae 554 evil since this code is used by the C and C++. */
c906108c 555
94af9270
KS
556void
557c_type_print_args (struct type *type, struct ui_file *stream,
79d43c61
TT
558 int linkage_name, enum language language,
559 const struct type_print_options *flags)
c906108c 560{
df54f8eb 561 int i;
0d5de010 562 int printed_any = 0;
c906108c
SS
563
564 fprintf_filtered (stream, "(");
ad2f7632 565
1f704f76 566 for (i = 0; i < type->num_fields (); i++)
0d5de010 567 {
bc9a5551
JK
568 struct type *param_type;
569
3167638f 570 if (TYPE_FIELD_ARTIFICIAL (type, i) && linkage_name)
94af9270
KS
571 continue;
572
0d5de010 573 if (printed_any)
c906108c 574 {
0d5de010 575 fprintf_filtered (stream, ", ");
1285ce86 576 stream->wrap_here (4);
c906108c 577 }
0d5de010 578
940da03e 579 param_type = type->field (i).type ();
bc9a5551 580
3167638f 581 if (language == language_cplus && linkage_name)
bc9a5551
JK
582 {
583 /* C++ standard, 13.1 Overloadable declarations, point 3, item:
584 - Parameter declarations that differ only in the presence or
585 absence of const and/or volatile are equivalent.
586
587 And the const/volatile qualifiers are not present in the mangled
588 names as produced by GCC. */
589
590 param_type = make_cv_type (0, 0, param_type, NULL);
591 }
592
c1ec8cea 593 c_print_type (param_type, "", stream, -1, 0, language, flags);
0d5de010 594 printed_any = 1;
c906108c 595 }
0d5de010 596
a409645d 597 if (printed_any && type->has_varargs ())
c906108c 598 {
0d5de010
DJ
599 /* Print out a trailing ellipsis for varargs functions. Ignore
600 TYPE_VARARGS if the function has no named arguments; that
601 represents unprototyped (K&R style) C functions. */
a409645d 602 if (printed_any && type->has_varargs ())
0d5de010
DJ
603 {
604 fprintf_filtered (stream, ", ");
1285ce86 605 stream->wrap_here (4);
0d5de010
DJ
606 fprintf_filtered (stream, "...");
607 }
c906108c 608 }
0d5de010 609 else if (!printed_any
7f9f399b 610 && (type->is_prototyped () || language == language_cplus))
0d5de010 611 fprintf_filtered (stream, "void");
c5aa993b 612
c906108c
SS
613 fprintf_filtered (stream, ")");
614}
615
dfcd3bfb
JM
616/* Return true iff the j'th overloading of the i'th method of TYPE
617 is a type conversion operator, like `operator int () { ... }'.
618 When listing a class's methods, we don't print the return type of
619 such operators. */
a737a51b 620
dfcd3bfb
JM
621static int
622is_type_conversion_operator (struct type *type, int i, int j)
623{
624 /* I think the whole idea of recognizing type conversion operators
625 by their name is pretty terrible. But I don't think our present
626 data structure gives us any other way to tell. If you know of
627 some other way, feel free to rewrite this function. */
0d5cff50 628 const char *name = TYPE_FN_FIELDLIST_NAME (type, i);
dfcd3bfb 629
8090b426 630 if (!startswith (name, CP_OPERATOR_STR))
dfcd3bfb
JM
631 return 0;
632
633 name += 8;
634 if (! strchr (" \t\f\n\r", *name))
635 return 0;
636
637 while (strchr (" \t\f\n\r", *name))
638 name++;
639
b0129042
DJ
640 if (!('a' <= *name && *name <= 'z')
641 && !('A' <= *name && *name <= 'Z')
642 && *name != '_')
643 /* If this doesn't look like the start of an identifier, then it
644 isn't a type conversion operator. */
645 return 0;
61012eef 646 else if (startswith (name, "new"))
dfcd3bfb 647 name += 3;
61012eef 648 else if (startswith (name, "delete"))
dfcd3bfb
JM
649 name += 6;
650 else
39c22d1a
JM
651 /* If it doesn't look like new or delete, it's a type conversion
652 operator. */
653 return 1;
dfcd3bfb
JM
654
655 /* Is that really the end of the name? */
656 if (('a' <= *name && *name <= 'z')
657 || ('A' <= *name && *name <= 'Z')
658 || ('0' <= *name && *name <= '9')
659 || *name == '_')
660 /* No, so the identifier following "operator" must be a type name,
661 and this is a type conversion operator. */
662 return 1;
663
664 /* That was indeed the end of the name, so it was `operator new' or
aff410f1
MS
665 `operator delete', neither of which are type conversion
666 operators. */
dfcd3bfb
JM
667 return 0;
668}
669
dfcd3bfb
JM
670/* Given a C++ qualified identifier QID, strip off the qualifiers,
671 yielding the unqualified name. The return value is a pointer into
672 the original string.
673
674 It's a pity we don't have this information in some more structured
675 form. Even the author of this function feels that writing little
676 parsers like this everywhere is stupid. */
a737a51b 677
3456e70c
TT
678static const char *
679remove_qualifiers (const char *qid)
dfcd3bfb 680{
0963b4bd 681 int quoted = 0; /* Zero if we're not in quotes;
aff410f1
MS
682 '"' if we're in a double-quoted string;
683 '\'' if we're in a single-quoted string. */
0963b4bd 684 int depth = 0; /* Number of unclosed parens we've seen. */
dfcd3bfb 685 char *parenstack = (char *) alloca (strlen (qid));
3456e70c
TT
686 const char *scan;
687 const char *last = 0; /* The character after the rightmost
aff410f1 688 `::' token we've seen so far. */
dfcd3bfb
JM
689
690 for (scan = qid; *scan; scan++)
691 {
692 if (quoted)
693 {
694 if (*scan == quoted)
695 quoted = 0;
696 else if (*scan == '\\' && *(scan + 1))
697 scan++;
698 }
699 else if (scan[0] == ':' && scan[1] == ':')
700 {
701 /* If we're inside parenthesis (i.e., an argument list) or
702 angle brackets (i.e., a list of template arguments), then
703 we don't record the position of this :: token, since it's
aff410f1
MS
704 not relevant to the top-level structure we're trying to
705 operate on. */
dfcd3bfb
JM
706 if (depth == 0)
707 {
708 last = scan + 2;
709 scan++;
710 }
711 }
712 else if (*scan == '"' || *scan == '\'')
713 quoted = *scan;
714 else if (*scan == '(')
715 parenstack[depth++] = ')';
716 else if (*scan == '[')
717 parenstack[depth++] = ']';
718 /* We're going to treat <> as a pair of matching characters,
719 since we're more likely to see those in template id's than
720 real less-than characters. What a crock. */
721 else if (*scan == '<')
722 parenstack[depth++] = '>';
723 else if (*scan == ')' || *scan == ']' || *scan == '>')
724 {
725 if (depth > 0 && parenstack[depth - 1] == *scan)
726 depth--;
727 else
728 {
aff410f1
MS
729 /* We're going to do a little error recovery here. If
730 we don't find a match for *scan on the paren stack,
731 but there is something lower on the stack that does
732 match, we pop the stack to that point. */
dfcd3bfb
JM
733 int i;
734
735 for (i = depth - 1; i >= 0; i--)
736 if (parenstack[i] == *scan)
737 {
738 depth = i;
739 break;
740 }
741 }
742 }
743 }
744
745 if (last)
746 return last;
747 else
748 /* We didn't find any :: tokens at the top level, so declare the
749 whole thing an unqualified identifier. */
750 return qid;
751}
752
c906108c
SS
753/* Print any array sizes, function arguments or close parentheses
754 needed after the variable name (to describe its type).
755 Args work like c_type_print_varspec_prefix. */
756
bc8453a7 757static void
aff410f1
MS
758c_type_print_varspec_suffix (struct type *type,
759 struct ui_file *stream,
760 int show, int passed_a_ptr,
79d43c61 761 int demangled_args,
c1ec8cea 762 enum language language,
79d43c61 763 const struct type_print_options *flags)
c906108c
SS
764{
765 if (type == 0)
766 return;
767
7d93a1e0 768 if (type->name () && show <= 0)
c906108c
SS
769 return;
770
771 QUIT;
772
78134374 773 switch (type->code ())
c906108c
SS
774 {
775 case TYPE_CODE_ARRAY:
dbc98a8b
KW
776 {
777 LONGEST low_bound, high_bound;
bd63c870 778 int is_vector = type->is_vector ();
c5aa993b 779
dbc98a8b
KW
780 if (passed_a_ptr)
781 fprintf_filtered (stream, ")");
c5aa993b 782
42056501 783 fprintf_filtered (stream, (is_vector ?
2f27adfe 784 " __attribute__ ((vector_size(" : "["));
1d42e4c4 785 /* Bounds are not yet resolved, print a bounds placeholder instead. */
cf88be68
SM
786 if (type->bounds ()->high.kind () == PROP_LOCEXPR
787 || type->bounds ()->high.kind () == PROP_LOCLIST)
1d42e4c4
SA
788 fprintf_filtered (stream, "variable length");
789 else if (get_array_bounds (type, &low_bound, &high_bound))
318102b9
SP
790 fprintf_filtered (stream, "%s",
791 plongest (high_bound - low_bound + 1));
42056501 792 fprintf_filtered (stream, (is_vector ? ")))" : "]"));
dbc98a8b 793
aff410f1 794 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
c1ec8cea 795 show, 0, 0, language, flags);
dbc98a8b 796 }
c906108c
SS
797 break;
798
0d5de010 799 case TYPE_CODE_MEMBERPTR:
aff410f1 800 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
c1ec8cea 801 show, 0, 0, language, flags);
c906108c
SS
802 break;
803
0d5de010
DJ
804 case TYPE_CODE_METHODPTR:
805 fprintf_filtered (stream, ")");
aff410f1 806 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
c1ec8cea 807 show, 0, 0, language, flags);
c906108c
SS
808 break;
809
810 case TYPE_CODE_PTR:
811 case TYPE_CODE_REF:
e1cb3213 812 case TYPE_CODE_RVALUE_REF:
aff410f1 813 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
c1ec8cea 814 show, 1, 0, language, flags);
c906108c
SS
815 break;
816
0d5de010 817 case TYPE_CODE_METHOD:
c906108c
SS
818 case TYPE_CODE_FUNC:
819 if (passed_a_ptr)
820 fprintf_filtered (stream, ")");
821 if (!demangled_args)
c1ec8cea 822 c_type_print_args (type, stream, 0, language, flags);
aff410f1 823 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
c1ec8cea 824 show, passed_a_ptr, 0, language, flags);
248f8055
DJ
825 break;
826
827 case TYPE_CODE_TYPEDEF:
aff410f1 828 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
c1ec8cea 829 show, passed_a_ptr, 0, language, flags);
c906108c
SS
830 break;
831
832 case TYPE_CODE_UNDEF:
833 case TYPE_CODE_STRUCT:
834 case TYPE_CODE_UNION:
81516450 835 case TYPE_CODE_FLAGS:
c906108c
SS
836 case TYPE_CODE_ENUM:
837 case TYPE_CODE_INT:
838 case TYPE_CODE_FLT:
839 case TYPE_CODE_VOID:
840 case TYPE_CODE_ERROR:
841 case TYPE_CODE_CHAR:
842 case TYPE_CODE_BOOL:
843 case TYPE_CODE_SET:
844 case TYPE_CODE_RANGE:
845 case TYPE_CODE_STRING:
c906108c 846 case TYPE_CODE_COMPLEX:
5c4e30ca 847 case TYPE_CODE_NAMESPACE:
7678ef8f 848 case TYPE_CODE_DECFLOAT:
0c9150e4 849 case TYPE_CODE_FIXED_POINT:
c906108c 850 /* These types do not need a suffix. They are listed so that
dda83cd7
SM
851 gcc -Wall will report types that may not have been
852 considered. */
c906108c 853 break;
c4093a6a 854 default:
3d263c1d 855 error (_("type not handled in c_type_print_varspec_suffix()"));
c4093a6a 856 break;
c906108c
SS
857 }
858}
859
bd69fc68
TT
860/* A helper for c_type_print_base that displays template
861 parameters and their bindings, if needed.
862
863 TABLE is the local bindings table to use. If NULL, no printing is
864 done. Note that, at this point, TABLE won't have any useful
865 information in it -- but it is also used as a flag to
866 print_name_maybe_canonical to activate searching the global typedef
867 table.
868
869 TYPE is the type whose template arguments are being displayed.
870
871 STREAM is the stream on which to print. */
872
873static void
874c_type_print_template_args (const struct type_print_options *flags,
875 struct type *type, struct ui_file *stream)
876{
877 int first = 1, i;
878
879 if (flags->raw)
880 return;
881
882 for (i = 0; i < TYPE_N_TEMPLATE_ARGUMENTS (type); ++i)
883 {
884 struct symbol *sym = TYPE_TEMPLATE_ARGUMENT (type, i);
885
66d7f48f 886 if (sym->aclass () != LOC_TYPEDEF)
bd69fc68
TT
887 continue;
888
889 if (first)
890 {
1285ce86 891 stream->wrap_here (4);
987012b8 892 fprintf_filtered (stream, _("[with %s = "), sym->linkage_name ());
bd69fc68
TT
893 first = 0;
894 }
895 else
896 {
897 fputs_filtered (", ", stream);
1285ce86 898 stream->wrap_here (9);
987012b8 899 fprintf_filtered (stream, "%s = ", sym->linkage_name ());
bd69fc68
TT
900 }
901
5f9c5a63 902 c_print_type (sym->type (), "", stream, -1, 0, flags);
bd69fc68
TT
903 }
904
905 if (!first)
906 fputs_filtered (_("] "), stream);
907}
908
7c161838
SDJ
909/* Use 'print_spaces_filtered', but take into consideration the
910 type_print_options FLAGS in order to determine how many whitespaces
911 will be printed. */
912
913static void
914print_spaces_filtered_with_print_options
915 (int level, struct ui_file *stream, const struct type_print_options *flags)
916{
917 if (!flags->print_offsets)
918 print_spaces_filtered (level, stream);
919 else
e0c547d1 920 print_spaces_filtered (level + print_offset_data::indentation, stream);
7c161838
SDJ
921}
922
c191a687
KS
923/* Output an access specifier to STREAM, if needed. LAST_ACCESS is the
924 last access specifier output (typically returned by this function). */
925
926static enum access_specifier
927output_access_specifier (struct ui_file *stream,
928 enum access_specifier last_access,
7c161838
SDJ
929 int level, bool is_protected, bool is_private,
930 const struct type_print_options *flags)
c191a687
KS
931{
932 if (is_protected)
933 {
934 if (last_access != s_protected)
935 {
936 last_access = s_protected;
7c161838
SDJ
937 print_spaces_filtered_with_print_options (level + 2, stream, flags);
938 fprintf_filtered (stream, "protected:\n");
c191a687
KS
939 }
940 }
941 else if (is_private)
942 {
943 if (last_access != s_private)
944 {
945 last_access = s_private;
7c161838
SDJ
946 print_spaces_filtered_with_print_options (level + 2, stream, flags);
947 fprintf_filtered (stream, "private:\n");
c191a687
KS
948 }
949 }
950 else
951 {
952 if (last_access != s_public)
953 {
954 last_access = s_public;
7c161838
SDJ
955 print_spaces_filtered_with_print_options (level + 2, stream, flags);
956 fprintf_filtered (stream, "public:\n");
c191a687
KS
957 }
958 }
959
960 return last_access;
961}
962
7c161838 963/* Return true if an access label (i.e., "public:", "private:",
a27ed7d6
SDJ
964 "protected:") needs to be printed for TYPE. */
965
966static bool
967need_access_label_p (struct type *type)
968{
3bc440a2 969 if (type->is_declared_class ())
a27ed7d6
SDJ
970 {
971 QUIT;
1f704f76 972 for (int i = TYPE_N_BASECLASSES (type); i < type->num_fields (); i++)
a27ed7d6
SDJ
973 if (!TYPE_FIELD_PRIVATE (type, i))
974 return true;
975 QUIT;
976 for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
977 for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
978 if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
979 j), i))
980 return true;
981 QUIT;
982 for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
983 if (!TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
984 return true;
985 }
986 else
987 {
988 QUIT;
1f704f76 989 for (int i = TYPE_N_BASECLASSES (type); i < type->num_fields (); i++)
a27ed7d6
SDJ
990 if (TYPE_FIELD_PRIVATE (type, i) || TYPE_FIELD_PROTECTED (type, i))
991 return true;
992 QUIT;
993 for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
994 {
995 QUIT;
996 for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
997 if (TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type,
998 j), i)
999 || TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
1000 j),
1001 i))
1002 return true;
1003 }
1004 QUIT;
1005 for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
1006 if (TYPE_TYPEDEF_FIELD_PROTECTED (type, i)
1007 || TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
1008 return true;
1009 }
1010
1011 return false;
1012}
1013
7c161838
SDJ
1014/* Helper function that temporarily disables FLAGS->PRINT_OFFSETS,
1015 calls 'c_print_type_1', and then reenables FLAGS->PRINT_OFFSETS if
1016 applicable. */
1017
1018static void
1019c_print_type_no_offsets (struct type *type,
1020 const char *varstring,
1021 struct ui_file *stream,
1022 int show, int level,
c1ec8cea 1023 enum language language,
7c161838
SDJ
1024 struct type_print_options *flags,
1025 struct print_offset_data *podata)
1026{
1027 unsigned int old_po = flags->print_offsets;
1028
1029 /* Temporarily disable print_offsets, because it would mess with
1030 indentation. */
1031 flags->print_offsets = 0;
c1ec8cea
TT
1032 c_print_type_1 (type, varstring, stream, show, level, language, flags,
1033 podata);
7c161838
SDJ
1034 flags->print_offsets = old_po;
1035}
1036
a27ed7d6
SDJ
1037/* Helper for 'c_type_print_base' that handles structs and unions.
1038 For a description of the arguments, see 'c_type_print_base'. */
1039
1040static void
1041c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
1042 int show, int level,
c1ec8cea 1043 enum language language,
7c161838
SDJ
1044 const struct type_print_options *flags,
1045 struct print_offset_data *podata)
a27ed7d6
SDJ
1046{
1047 struct type_print_options local_flags = *flags;
a27ed7d6 1048 local_flags.local_typedefs = NULL;
a27ed7d6 1049
c819b2c0 1050 std::unique_ptr<typedef_hash_table> hash_holder;
a27ed7d6
SDJ
1051 if (!flags->raw)
1052 {
1053 if (flags->local_typedefs)
1054 local_flags.local_typedefs
c819b2c0 1055 = new typedef_hash_table (*flags->local_typedefs);
a27ed7d6 1056 else
c819b2c0 1057 local_flags.local_typedefs = new typedef_hash_table ();
a27ed7d6 1058
c819b2c0 1059 hash_holder.reset (local_flags.local_typedefs);
a27ed7d6
SDJ
1060 }
1061
3293bbaf 1062 c_type_print_modifier (type, stream, 0, 1, language);
78134374 1063 if (type->code () == TYPE_CODE_UNION)
a27ed7d6 1064 fprintf_filtered (stream, "union ");
3bc440a2 1065 else if (type->is_declared_class ())
a27ed7d6
SDJ
1066 fprintf_filtered (stream, "class ");
1067 else
1068 fprintf_filtered (stream, "struct ");
1069
1070 /* Print the tag if it exists. The HP aCC compiler emits a
1071 spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed
1072 enum}" tag for unnamed struct/union/enum's, which we don't
1073 want to print. */
7d93a1e0
SM
1074 if (type->name () != NULL
1075 && !startswith (type->name (), "{unnamed"))
a27ed7d6
SDJ
1076 {
1077 /* When printing the tag name, we are still effectively
1078 printing in the outer context, hence the use of FLAGS
1079 here. */
7d93a1e0 1080 print_name_maybe_canonical (type->name (), flags, stream);
a27ed7d6
SDJ
1081 if (show > 0)
1082 fputs_filtered (" ", stream);
1083 }
1084
1085 if (show < 0)
1086 {
1087 /* If we just printed a tag name, no need to print anything
1088 else. */
7d93a1e0 1089 if (type->name () == NULL)
a27ed7d6
SDJ
1090 fprintf_filtered (stream, "{...}");
1091 }
7d93a1e0 1092 else if (show > 0 || type->name () == NULL)
a27ed7d6
SDJ
1093 {
1094 struct type *basetype;
1095 int vptr_fieldno;
1096
1097 c_type_print_template_args (&local_flags, type, stream);
1098
1099 /* Add in template parameters when printing derivation info. */
c819b2c0
TT
1100 if (local_flags.local_typedefs != NULL)
1101 local_flags.local_typedefs->add_template_parameters (type);
a27ed7d6
SDJ
1102 cp_type_print_derivation_info (stream, type, &local_flags);
1103
1104 /* This holds just the global typedefs and the template
1105 parameters. */
c819b2c0
TT
1106 struct type_print_options semi_local_flags = *flags;
1107 semi_local_flags.local_typedefs = NULL;
a27ed7d6 1108
c819b2c0
TT
1109 std::unique_ptr<typedef_hash_table> semi_holder;
1110 if (local_flags.local_typedefs != nullptr)
1111 {
1112 semi_local_flags.local_typedefs
1113 = new typedef_hash_table (*local_flags.local_typedefs);
1114 semi_holder.reset (semi_local_flags.local_typedefs);
1115
1116 /* Now add in the local typedefs. */
1117 local_flags.local_typedefs->recursively_update (type);
1118 }
a27ed7d6
SDJ
1119
1120 fprintf_filtered (stream, "{\n");
7c161838 1121
1f704f76 1122 if (type->num_fields () == 0 && TYPE_NFN_FIELDS (type) == 0
a27ed7d6
SDJ
1123 && TYPE_TYPEDEF_FIELD_COUNT (type) == 0)
1124 {
432ce4cf 1125 print_spaces_filtered_with_print_options (level + 4, stream, flags);
e46d3488 1126 if (type->is_stub ())
432ce4cf 1127 fprintf_filtered (stream, _("%p[<incomplete type>%p]\n"),
32f47895 1128 metadata_style.style ().ptr (), nullptr);
a27ed7d6 1129 else
432ce4cf 1130 fprintf_filtered (stream, _("%p[<no data fields>%p]\n"),
32f47895 1131 metadata_style.style ().ptr (), nullptr);
a27ed7d6
SDJ
1132 }
1133
1134 /* Start off with no specific section type, so we can print
1135 one for the first field we find, and use that section type
1136 thereafter until we find another type. */
1137
1138 enum access_specifier section_type = s_none;
1139
1140 /* For a class, if all members are private, there's no need
1141 for a "private:" label; similarly, for a struct or union
1142 masquerading as a class, if all members are public, there's
1143 no need for a "public:" label. */
1144 bool need_access_label = need_access_label_p (type);
1145
1146 /* If there is a base class for this type,
1147 do not print the field that it occupies. */
1148
1f704f76 1149 int len = type->num_fields ();
a27ed7d6 1150 vptr_fieldno = get_vptr_fieldno (type, &basetype);
7c161838 1151
fbb46296 1152 struct print_offset_data local_podata (flags);
7c161838 1153
a27ed7d6
SDJ
1154 for (int i = TYPE_N_BASECLASSES (type); i < len; i++)
1155 {
1156 QUIT;
1157
1158 /* If we have a virtual table pointer, omit it. Even if
1159 virtual table pointers are not specifically marked in
1160 the debug info, they should be artificial. */
1161 if ((i == vptr_fieldno && type == basetype)
1162 || TYPE_FIELD_ARTIFICIAL (type, i))
1163 continue;
1164
1165 if (need_access_label)
1166 {
1167 section_type = output_access_specifier
1168 (stream, section_type, level,
1169 TYPE_FIELD_PROTECTED (type, i),
7c161838
SDJ
1170 TYPE_FIELD_PRIVATE (type, i), flags);
1171 }
1172
ceacbf6e 1173 bool is_static = field_is_static (&type->field (i));
7c161838
SDJ
1174
1175 if (flags->print_offsets)
e0c547d1 1176 podata->update (type, i, stream);
a27ed7d6
SDJ
1177
1178 print_spaces_filtered (level + 4, stream);
7c161838 1179 if (is_static)
a27ed7d6 1180 fprintf_filtered (stream, "static ");
7c161838
SDJ
1181
1182 int newshow = show - 1;
1183
16ff70dd 1184 if (!is_static && flags->print_offsets
940da03e
SM
1185 && (type->field (i).type ()->code () == TYPE_CODE_STRUCT
1186 || type->field (i).type ()->code () == TYPE_CODE_UNION))
7c161838
SDJ
1187 {
1188 /* If we're printing offsets and this field's type is
1189 either a struct or an union, then we're interested in
1190 expanding it. */
1191 ++newshow;
1192
1193 /* Make sure we carry our offset when we expand the
1194 struct/union. */
1195 local_podata.offset_bitpos
b610c045 1196 = podata->offset_bitpos + type->field (i).loc_bitpos ();
7c161838
SDJ
1197 /* We're entering a struct/union. Right now,
1198 PODATA->END_BITPOS points right *after* the
1199 struct/union. However, when printing the first field
1200 of this inner struct/union, the end_bitpos we're
1201 expecting is exactly at the beginning of the
1202 struct/union. Therefore, we subtract the length of
1203 the whole struct/union. */
1204 local_podata.end_bitpos
1205 = podata->end_bitpos
940da03e 1206 - TYPE_LENGTH (type->field (i).type ()) * TARGET_CHAR_BIT;
7c161838
SDJ
1207 }
1208
940da03e 1209 c_print_type_1 (type->field (i).type (),
33d16dd9 1210 type->field (i).name (),
7c161838 1211 stream, newshow, level + 4,
c1ec8cea 1212 language, &local_flags, &local_podata);
7c161838
SDJ
1213
1214 if (!is_static && TYPE_FIELD_PACKED (type, i))
a27ed7d6
SDJ
1215 {
1216 /* It is a bitfield. This code does not attempt
1217 to look at the bitpos and reconstruct filler,
1218 unnamed fields. This would lead to misleading
1219 results if the compiler does not put out fields
1220 for such things (I don't know what it does). */
1221 fprintf_filtered (stream, " : %d",
1222 TYPE_FIELD_BITSIZE (type, i));
1223 }
1224 fprintf_filtered (stream, ";\n");
1225 }
1226
1227 /* If there are both fields and methods, put a blank line
1228 between them. Make sure to count only method that we
1229 will display; artificial methods will be hidden. */
1230 len = TYPE_NFN_FIELDS (type);
1231 if (!flags->print_methods)
1232 len = 0;
1233 int real_len = 0;
1234 for (int i = 0; i < len; i++)
1235 {
1236 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
1237 int len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
1238 int j;
1239
1240 for (j = 0; j < len2; j++)
1241 if (!TYPE_FN_FIELD_ARTIFICIAL (f, j))
1242 real_len++;
1243 }
1244 if (real_len > 0 && section_type != s_none)
1245 fprintf_filtered (stream, "\n");
1246
1247 /* C++: print out the methods. */
1248 for (int i = 0; i < len; i++)
1249 {
1250 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
1251 int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
1252 const char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
7d93a1e0 1253 const char *name = type->name ();
a27ed7d6
SDJ
1254 int is_constructor = name && strcmp (method_name,
1255 name) == 0;
1256
1257 for (j = 0; j < len2; j++)
1258 {
1259 const char *mangled_name;
1260 gdb::unique_xmalloc_ptr<char> mangled_name_holder;
a27ed7d6
SDJ
1261 const char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
1262 int is_full_physname_constructor =
1263 TYPE_FN_FIELD_CONSTRUCTOR (f, j)
1264 || is_constructor_name (physname)
1265 || is_destructor_name (physname)
1266 || method_name[0] == '~';
1267
1268 /* Do not print out artificial methods. */
1269 if (TYPE_FN_FIELD_ARTIFICIAL (f, j))
1270 continue;
1271
1272 QUIT;
1273 section_type = output_access_specifier
1274 (stream, section_type, level,
1275 TYPE_FN_FIELD_PROTECTED (f, j),
7c161838 1276 TYPE_FN_FIELD_PRIVATE (f, j), flags);
a27ed7d6 1277
7c161838
SDJ
1278 print_spaces_filtered_with_print_options (level + 4, stream,
1279 flags);
a27ed7d6
SDJ
1280 if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
1281 fprintf_filtered (stream, "virtual ");
1282 else if (TYPE_FN_FIELD_STATIC_P (f, j))
1283 fprintf_filtered (stream, "static ");
1284 if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0)
1285 {
1286 /* Keep GDB from crashing here. */
1287 fprintf_filtered (stream,
7f6aba03
TT
1288 _("%p[<undefined type>%p] %s;\n"),
1289 metadata_style.style ().ptr (), nullptr,
a27ed7d6
SDJ
1290 TYPE_FN_FIELD_PHYSNAME (f, j));
1291 break;
1292 }
1293 else if (!is_constructor /* Constructors don't
1294 have declared
1295 types. */
1296 && !is_full_physname_constructor /* " " */
1297 && !is_type_conversion_operator (type, i, j))
1298 {
7c161838
SDJ
1299 c_print_type_no_offsets
1300 (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)),
c1ec8cea 1301 "", stream, -1, 0, language, &local_flags, podata);
7c161838 1302
a27ed7d6
SDJ
1303 fputs_filtered (" ", stream);
1304 }
1305 if (TYPE_FN_FIELD_STUB (f, j))
1306 {
1307 /* Build something we can demangle. */
1308 mangled_name_holder.reset (gdb_mangle_name (type, i, j));
1309 mangled_name = mangled_name_holder.get ();
1310 }
1311 else
1312 mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j);
1313
3456e70c
TT
1314 gdb::unique_xmalloc_ptr<char> demangled_name
1315 = gdb_demangle (mangled_name,
1316 DMGL_ANSI | DMGL_PARAMS);
a27ed7d6
SDJ
1317 if (demangled_name == NULL)
1318 {
1319 /* In some cases (for instance with the HP
1320 demangling), if a function has more than 10
1321 arguments, the demangling will fail.
1322 Let's try to reconstruct the function
1323 signature from the symbol information. */
1324 if (!TYPE_FN_FIELD_STUB (f, j))
1325 {
1326 int staticp = TYPE_FN_FIELD_STATIC_P (f, j);
1327 struct type *mtype = TYPE_FN_FIELD_TYPE (f, j);
1328
1329 cp_type_print_method_args (mtype,
1330 "",
1331 method_name,
1332 staticp,
c1ec8cea
TT
1333 stream, language,
1334 &local_flags);
a27ed7d6
SDJ
1335 }
1336 else
7f6aba03
TT
1337 fprintf_styled (stream, metadata_style.style (),
1338 _("<badly mangled name '%s'>"),
1339 mangled_name);
a27ed7d6
SDJ
1340 }
1341 else
1342 {
3456e70c
TT
1343 const char *p;
1344 const char *demangled_no_class
1345 = remove_qualifiers (demangled_name.get ());
a27ed7d6
SDJ
1346
1347 /* Get rid of the `static' appended by the
1348 demangler. */
1349 p = strstr (demangled_no_class, " static");
1350 if (p != NULL)
1351 {
1352 int length = p - demangled_no_class;
3456e70c
TT
1353 std::string demangled_no_static (demangled_no_class,
1354 length);
1355 fputs_filtered (demangled_no_static.c_str (), stream);
a27ed7d6
SDJ
1356 }
1357 else
1358 fputs_filtered (demangled_no_class, stream);
a27ed7d6
SDJ
1359 }
1360
1361 fprintf_filtered (stream, ";\n");
1362 }
1363 }
1364
1365 /* Print out nested types. */
1366 if (TYPE_NESTED_TYPES_COUNT (type) != 0
1367 && semi_local_flags.print_nested_type_limit != 0)
1368 {
1369 if (semi_local_flags.print_nested_type_limit > 0)
1370 --semi_local_flags.print_nested_type_limit;
1371
1f704f76 1372 if (type->num_fields () != 0 || TYPE_NFN_FIELDS (type) != 0)
a27ed7d6
SDJ
1373 fprintf_filtered (stream, "\n");
1374
1375 for (int i = 0; i < TYPE_NESTED_TYPES_COUNT (type); ++i)
1376 {
7c161838
SDJ
1377 print_spaces_filtered_with_print_options (level + 4, stream,
1378 flags);
1379 c_print_type_no_offsets (TYPE_NESTED_TYPES_FIELD_TYPE (type, i),
1380 "", stream, show, level + 4,
c1ec8cea 1381 language, &semi_local_flags, podata);
a27ed7d6
SDJ
1382 fprintf_filtered (stream, ";\n");
1383 }
1384 }
1385
1386 /* Print typedefs defined in this class. */
1387
1388 if (TYPE_TYPEDEF_FIELD_COUNT (type) != 0 && flags->print_typedefs)
1389 {
1f704f76 1390 if (type->num_fields () != 0 || TYPE_NFN_FIELDS (type) != 0
a27ed7d6
SDJ
1391 || TYPE_NESTED_TYPES_COUNT (type) != 0)
1392 fprintf_filtered (stream, "\n");
1393
1394 for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); i++)
1395 {
1396 struct type *target = TYPE_TYPEDEF_FIELD_TYPE (type, i);
1397
1398 /* Dereference the typedef declaration itself. */
78134374 1399 gdb_assert (target->code () == TYPE_CODE_TYPEDEF);
a27ed7d6
SDJ
1400 target = TYPE_TARGET_TYPE (target);
1401
1402 if (need_access_label)
1403 {
1404 section_type = output_access_specifier
1405 (stream, section_type, level,
1406 TYPE_TYPEDEF_FIELD_PROTECTED (type, i),
7c161838 1407 TYPE_TYPEDEF_FIELD_PRIVATE (type, i), flags);
a27ed7d6 1408 }
7c161838
SDJ
1409 print_spaces_filtered_with_print_options (level + 4, stream,
1410 flags);
a27ed7d6
SDJ
1411 fprintf_filtered (stream, "typedef ");
1412
1413 /* We want to print typedefs with substitutions
1414 from the template parameters or globally-known
1415 typedefs but not local typedefs. */
7c161838
SDJ
1416 c_print_type_no_offsets (target,
1417 TYPE_TYPEDEF_FIELD_NAME (type, i),
1418 stream, show - 1, level + 4,
c1ec8cea 1419 language, &semi_local_flags, podata);
a27ed7d6
SDJ
1420 fprintf_filtered (stream, ";\n");
1421 }
1422 }
1423
7c161838
SDJ
1424 if (flags->print_offsets)
1425 {
1426 if (show > 0)
e0c547d1 1427 podata->finish (type, level, stream);
7c161838 1428
e0c547d1 1429 print_spaces_filtered (print_offset_data::indentation, stream);
7c161838
SDJ
1430 if (level == 0)
1431 print_spaces_filtered (2, stream);
1432 }
1433
32f47895 1434 fprintf_filtered (stream, "%*s}", level, "");
a27ed7d6 1435 }
a27ed7d6
SDJ
1436}
1437
c906108c 1438/* Print the name of the type (or the ultimate pointer target,
aff410f1
MS
1439 function value or array element), or the description of a structure
1440 or union.
1441
1442 SHOW positive means print details about the type (e.g. enum
1443 values), and print structure elements passing SHOW - 1 for show.
1444
1445 SHOW negative means just print the type name or struct tag if there
1446 is one. If there is no name, print something sensible but concise
1447 like "struct {...}".
1448
1449 SHOW zero means just print the type name or struct tag if there is
1450 one. If there is no name, print something sensible but not as
1451 concise like "struct {int x; int y;}".
c906108c
SS
1452
1453 LEVEL is the number of spaces to indent by.
1454 We increase it for some recursive calls. */
1455
7c161838
SDJ
1456static void
1457c_type_print_base_1 (struct type *type, struct ui_file *stream,
1458 int show, int level,
c1ec8cea 1459 enum language language,
7c161838
SDJ
1460 const struct type_print_options *flags,
1461 struct print_offset_data *podata)
c906108c 1462{
b02dede2 1463 int i;
a27ed7d6 1464 int len;
c906108c
SS
1465
1466 QUIT;
1467
c906108c
SS
1468 if (type == NULL)
1469 {
7f6aba03 1470 fputs_styled (_("<type unknown>"), metadata_style.style (), stream);
c906108c
SS
1471 return;
1472 }
1473
aff410f1
MS
1474 /* When SHOW is zero or less, and there is a valid type name, then
1475 always just print the type name directly from the type. */
c906108c
SS
1476
1477 if (show <= 0
7d93a1e0 1478 && type->name () != NULL)
c906108c 1479 {
3293bbaf 1480 c_type_print_modifier (type, stream, 0, 1, language);
e86ca25f
TT
1481
1482 /* If we have "typedef struct foo {. . .} bar;" do we want to
1483 print it as "struct foo" or as "bar"? Pick the latter for
1484 C++, because C++ folk tend to expect things like "class5
1485 *foo" rather than "struct class5 *foo". We rather
1486 arbitrarily choose to make language_minimal work in a C-like
1487 way. */
1488 if (language == language_c || language == language_minimal)
1489 {
78134374 1490 if (type->code () == TYPE_CODE_UNION)
e86ca25f 1491 fprintf_filtered (stream, "union ");
78134374 1492 else if (type->code () == TYPE_CODE_STRUCT)
e86ca25f 1493 {
3bc440a2 1494 if (type->is_declared_class ())
e86ca25f
TT
1495 fprintf_filtered (stream, "class ");
1496 else
1497 fprintf_filtered (stream, "struct ");
1498 }
78134374 1499 else if (type->code () == TYPE_CODE_ENUM)
e86ca25f
TT
1500 fprintf_filtered (stream, "enum ");
1501 }
1502
7d93a1e0 1503 print_name_maybe_canonical (type->name (), flags, stream);
c906108c
SS
1504 return;
1505 }
1506
f168693b 1507 type = check_typedef (type);
c5aa993b 1508
78134374 1509 switch (type->code ())
c906108c
SS
1510 {
1511 case TYPE_CODE_TYPEDEF:
aff410f1
MS
1512 /* If we get here, the typedef doesn't have a name, and we
1513 couldn't resolve TYPE_TARGET_TYPE. Not much we can do. */
7d93a1e0 1514 gdb_assert (type->name () == NULL);
8c540a24 1515 gdb_assert (TYPE_TARGET_TYPE (type) == NULL);
7f6aba03
TT
1516 fprintf_styled (stream, metadata_style.style (),
1517 _("<unnamed typedef>"));
8c540a24
DE
1518 break;
1519
7022349d
PA
1520 case TYPE_CODE_FUNC:
1521 case TYPE_CODE_METHOD:
1522 if (TYPE_TARGET_TYPE (type) == NULL)
1523 type_print_unknown_return_type (stream);
1524 else
7c161838 1525 c_type_print_base_1 (TYPE_TARGET_TYPE (type),
c1ec8cea 1526 stream, show, level, language, flags, podata);
7022349d 1527 break;
c906108c
SS
1528 case TYPE_CODE_ARRAY:
1529 case TYPE_CODE_PTR:
0d5de010 1530 case TYPE_CODE_MEMBERPTR:
c906108c 1531 case TYPE_CODE_REF:
e1cb3213 1532 case TYPE_CODE_RVALUE_REF:
0d5de010 1533 case TYPE_CODE_METHODPTR:
7c161838 1534 c_type_print_base_1 (TYPE_TARGET_TYPE (type),
c1ec8cea 1535 stream, show, level, language, flags, podata);
c906108c
SS
1536 break;
1537
1538 case TYPE_CODE_STRUCT:
1c5b7826 1539 case TYPE_CODE_UNION:
c1ec8cea
TT
1540 c_type_print_base_struct_union (type, stream, show, level,
1541 language, flags, podata);
c906108c
SS
1542 break;
1543
1544 case TYPE_CODE_ENUM:
3293bbaf 1545 c_type_print_modifier (type, stream, 0, 1, language);
c5aa993b 1546 fprintf_filtered (stream, "enum ");
3bc440a2 1547 if (type->is_declared_class ())
3d567982 1548 fprintf_filtered (stream, "class ");
c906108c 1549 /* Print the tag name if it exists.
dda83cd7
SM
1550 The aCC compiler emits a spurious
1551 "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}"
1552 tag for unnamed struct/union/enum's, which we don't
1553 want to print. */
7d93a1e0
SM
1554 if (type->name () != NULL
1555 && !startswith (type->name (), "{unnamed"))
c906108c 1556 {
7d93a1e0 1557 print_name_maybe_canonical (type->name (), flags, stream);
c906108c
SS
1558 if (show > 0)
1559 fputs_filtered (" ", stream);
1560 }
1561
1285ce86 1562 stream->wrap_here (4);
c906108c
SS
1563 if (show < 0)
1564 {
aff410f1
MS
1565 /* If we just printed a tag name, no need to print anything
1566 else. */
7d93a1e0 1567 if (type->name () == NULL)
c906108c
SS
1568 fprintf_filtered (stream, "{...}");
1569 }
7d93a1e0 1570 else if (show > 0 || type->name () == NULL)
c906108c 1571 {
14e75d8e
JK
1572 LONGEST lastval = 0;
1573
3d567982
TT
1574 /* We can't handle this case perfectly, as DWARF does not
1575 tell us whether or not the underlying type was specified
1576 in the source (and other debug formats don't provide this
1577 at all). We choose to print the underlying type, if it
1578 has a name, when in C++ on the theory that it's better to
1579 print too much than too little; but conversely not to
1580 print something egregiously outside the current
1581 language's syntax. */
c1ec8cea 1582 if (language == language_cplus && TYPE_TARGET_TYPE (type) != NULL)
3d567982
TT
1583 {
1584 struct type *underlying = check_typedef (TYPE_TARGET_TYPE (type));
1585
7d93a1e0
SM
1586 if (underlying->name () != NULL)
1587 fprintf_filtered (stream, ": %s ", underlying->name ());
3d567982
TT
1588 }
1589
c906108c 1590 fprintf_filtered (stream, "{");
1f704f76 1591 len = type->num_fields ();
c906108c
SS
1592 for (i = 0; i < len; i++)
1593 {
1594 QUIT;
c5aa993b
JM
1595 if (i)
1596 fprintf_filtered (stream, ", ");
1285ce86 1597 stream->wrap_here (4);
33d16dd9 1598 fputs_styled (type->field (i).name (),
3f0cbb04 1599 variable_name_style.style (), stream);
970db518 1600 if (lastval != type->field (i).loc_enumval ())
c906108c 1601 {
14e75d8e 1602 fprintf_filtered (stream, " = %s",
970db518
SM
1603 plongest (type->field (i).loc_enumval ()));
1604 lastval = type->field (i).loc_enumval ();
c906108c
SS
1605 }
1606 lastval++;
1607 }
1608 fprintf_filtered (stream, "}");
1609 }
1610 break;
1611
81516450
DE
1612 case TYPE_CODE_FLAGS:
1613 {
1614 struct type_print_options local_flags = *flags;
1615
1616 local_flags.local_typedefs = NULL;
1617
3293bbaf 1618 c_type_print_modifier (type, stream, 0, 1, language);
81516450 1619 fprintf_filtered (stream, "flag ");
7d93a1e0 1620 print_name_maybe_canonical (type->name (), flags, stream);
81516450
DE
1621 if (show > 0)
1622 {
1623 fputs_filtered (" ", stream);
1624 fprintf_filtered (stream, "{\n");
1f704f76 1625 if (type->num_fields () == 0)
81516450 1626 {
e46d3488 1627 if (type->is_stub ())
32f47895
TT
1628 fprintf_filtered (stream,
1629 _("%*s%p[<incomplete type>%p]\n"),
1630 level + 4, "",
1631 metadata_style.style ().ptr (), nullptr);
81516450 1632 else
32f47895
TT
1633 fprintf_filtered (stream,
1634 _("%*s%p[<no data fields>%p]\n"),
1635 level + 4, "",
1636 metadata_style.style ().ptr (), nullptr);
81516450 1637 }
1f704f76 1638 len = type->num_fields ();
81516450
DE
1639 for (i = 0; i < len; i++)
1640 {
1641 QUIT;
1642 print_spaces_filtered (level + 4, stream);
1643 /* We pass "show" here and not "show - 1" to get enum types
1644 printed. There's no other way to see them. */
940da03e 1645 c_print_type_1 (type->field (i).type (),
33d16dd9 1646 type->field (i).name (),
7c161838 1647 stream, show, level + 4,
c1ec8cea 1648 language, &local_flags, podata);
6b850546 1649 fprintf_filtered (stream, " @%s",
b610c045 1650 plongest (type->field (i).loc_bitpos ()));
81516450
DE
1651 if (TYPE_FIELD_BITSIZE (type, i) > 1)
1652 {
6b850546 1653 fprintf_filtered (stream, "-%s",
b610c045 1654 plongest (type->field (i).loc_bitpos ()
6b850546
DT
1655 + TYPE_FIELD_BITSIZE (type, i)
1656 - 1));
81516450
DE
1657 }
1658 fprintf_filtered (stream, ";\n");
1659 }
32f47895 1660 fprintf_filtered (stream, "%*s}", level, "");
81516450
DE
1661 }
1662 }
1663 break;
1664
c906108c
SS
1665 case TYPE_CODE_VOID:
1666 fprintf_filtered (stream, "void");
1667 break;
1668
1669 case TYPE_CODE_UNDEF:
3d263c1d 1670 fprintf_filtered (stream, _("struct <unknown>"));
c906108c
SS
1671 break;
1672
1673 case TYPE_CODE_ERROR:
b00fdb78 1674 fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type));
c906108c
SS
1675 break;
1676
1677 case TYPE_CODE_RANGE:
0963b4bd 1678 /* This should not occur. */
7f6aba03 1679 fprintf_styled (stream, metadata_style.style (), _("<range type>"));
c906108c
SS
1680 break;
1681
0c9150e4
JB
1682 case TYPE_CODE_FIXED_POINT:
1683 print_type_fixed_point (type, stream);
1684 break;
1685
5c4e30ca
DC
1686 case TYPE_CODE_NAMESPACE:
1687 fputs_filtered ("namespace ", stream);
7d93a1e0 1688 fputs_filtered (type->name (), stream);
5c4e30ca
DC
1689 break;
1690
c906108c 1691 default:
aff410f1 1692 /* Handle types not explicitly handled by the other cases, such
dda83cd7
SM
1693 as fundamental types. For these, just print whatever the
1694 type name is, as recorded in the type itself. If there is no
1695 type name, then complain. */
7d93a1e0 1696 if (type->name () != NULL)
c906108c 1697 {
3293bbaf 1698 c_type_print_modifier (type, stream, 0, 1, language);
7d93a1e0 1699 print_name_maybe_canonical (type->name (), flags, stream);
c906108c
SS
1700 }
1701 else
1702 {
aff410f1
MS
1703 /* At least for dump_symtab, it is important that this not
1704 be an error (). */
7f6aba03 1705 fprintf_styled (stream, metadata_style.style (),
78134374 1706 _("<invalid type code %d>"), type->code ());
c906108c
SS
1707 }
1708 break;
1709 }
1710}
7c161838
SDJ
1711
1712/* See c_type_print_base_1. */
1713
1714void
1715c_type_print_base (struct type *type, struct ui_file *stream,
1716 int show, int level,
1717 const struct type_print_options *flags)
1718{
fbb46296 1719 struct print_offset_data podata (flags);
7c161838 1720
c1ec8cea
TT
1721 c_type_print_base_1 (type, stream, show, level,
1722 current_language->la_language, flags, &podata);
7c161838 1723}
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